Roofing product and process for making same



C. E. RAHR ET AL ROOFING PRODUCT AND PROCESS FOR MAKING SAME Filed Dec. 15. 1919 3 Sheets-Sheet 1 lllllllllllllllll m Dec. 2, 19246 1,5123% C. E. RAHR ET AL ROOFING PRODUCT AND rnocsss FOR MAKING SAME Filed Dec. 15; 1919 3 Sheets-Sheet 2 c. E. RAHR ET AL ROOFING PRODUCT AND PROCESS FOR MAKING SAME Filed Dec. 15. 1919 3 Sheets-Sheet 5 Patented Dec. 2, was.

CHESTER E. RAHR AND ROBERT T. POLLOCK, OF BOSTON, MASSACHUSETTS, ASSIGNORS TO THE FLINTKOTE COMPANY, A CORPORATION OF MASSACHUSETTS.

ROOFING PRODUCT AND PROCESS FOR MAKING SAME.

Application filed December 15, 1919. Serial No. 344,894.

To all whom it may concern:

Be it known that we, CHESTER E. RAHR and Bonner T. PoLnocK, both citizens of the United States,.residing in the city of Boston, county of Sufi'olk, and State of Massachusetts, have invented certain new and useful Improvements in I Roofing Products and Processes for Making Same, of which the following is a specification.

Our invention relates to the production of improved roofing shingles and relates more particularly to a shingle which resembles roofing tile when laid.

Among its salient objects are to provide an embossed paper or felt roofing material which has been saturated .or impregnated with asphaltum or other bituminous substance and which may or may not have a granular surfacing; to provide shingles, which, when laid, have the appearance of tile or the like and make a very ornamental roof; to provide a shingle that can be more easily laid upon a roof due to the shoulders formed by the embossed portions, to provide shingles having tapered embossments extending longitudinally thereof the higher portions being at the lower end of the shingle when laid, and tapering ofl' to very inFig. 1.

low shoulders at the upper end of the embossments, the low shoulders furnishing abutments .for the lower edges of the shingles above; to provide a process for producing this type of shingle; and in general to provide novel improvements of the character referred to.

In the drawings:

Fig. 1 is a side view partly in section of apparatus for roducing tapered bosses transversely of t e sheet on its outer edges.

F'g. 2 is a plan view of apparatus shown Fig. 3 is a detail view of embossing rolls, parts of rolls broken away to show embossing dies.

Fig. .4 is a side elevation artly in section of the apparatus for pro ucing tapered embossed of the roe ng sheet.

rtions arranged longitudinally Fig. 5 is a plan View ofjapparatus shown in Fig. 4;.

Fig. 6 is a detail of a portion of a roof laid with shingles produced by apparatus shown in Figs. 1 andv 2, showing method of laying same. I

Fig. 7 is a detail of a portion of a roof laid with shingles produced in apparatus shown in Figs-'4.- and 5.

In the drawings, in Figs. 1 and 2 is shown the apparatus for producing the tapered boss upon the outer edges of the roofing sheet. The roofing sheet 1 which may be of any desired material such as roofing felt saturated or impregnated with bituminous or other asphaltic composition and which is either coated with granular surfacing or not, as desired, is fed between the embossing rolls 2 and 3 by means of any suitable power not shown. The upper embossing roll 2' has upon its periphery, raised portions 4 which register with corresponding recesses 5 in the lower embossing roll 3. After passing throughthese embossing rolls the roofing sheet has formed u 11 its surface the embossed portions 6. s the embossments and recesses are upon-the outer edges of the rolls the embossments formed upon the sheet are in a corresponding position running transversely of the sheet and have their higher ortions upon the outer edges. From the em ossing rolls the-sheet travels in the direction of the arrow and is cut longitudinally by means of the slitter 7. This slitter is mounted upon a shaft 8 and is driven by means of the chain 9 and sprockets 10 and 11 from the embossing rolls, the sprocket 11 being mounted on the shaft 4 upon which the upper embossing roll 18 also fixed. A bed-roll 7 mounted on the shaft 7" beneath the slitter furnishes a means for bold D After being slit longitudinally the roofing sheet passes beneath the two cutting rolls 12 and 13. The upper cutting roll has a blade 14 fixed to its surface and 1s so geared that it makes a complete revolutlon for each shingle length thereby cutting the sheet uniformly. The blade 14 registers with a recess 15 in the lower roll 13, the roll 13 also furnishing a solid cutting base for the cutting blade. After being thus cut transversely the shingles proceed from the machine byway of the chute 16 from which they may be collected by any convenient means. The cutting rolls, embossing rolls and slitter are all mounted upon any suitable frame not shown in the drawings, In Figs. 4: and 5 is shown the second apparatus for impressing the tapered embosses into the roofing sheet so that the embossments run longitudinally of the sheet. The embossing'rolls 17 and 18 are similarly arranged as those described previously the difference being in these rolls that raised portions 19 on roll 17 which registers with the recesses 20 in roll 18 are arranged transversely around the surface of the r011 and produce the tapered embossments longitudinally upon the roofing sheet. The rolls are driven by any suitable power by means of the gears 21 and 22 and travel in the direction of the arrows causing the roofing sheet to travel .in a direction correspondmg to that shown in Fig. 1. The sheet, after pgssing through the embossing rolls is out 1ongitudinally by a slitter 23 similar in its details to that shown in Fig. 1. The cutter consisting of the cutting roll 24 and the bed roll 25 are identical to that previously explained except that the cutting blades 26 are arranged at closer intervals and cut the sheet transversely into shorter lengths. The

cutter in the second type of apparatus shown severs the sheet transversely at the hi hest portion of the tapered embossment w ich, when laid upon a roof, is the lower edge of the shingle.

" plained the outer edges of the roofing sheet are the lower ed es of the shingle when laid upon a roof while in the second apparatus the lower edge of the shingle" is that part which is cut by transverse cutting blade. The embossing rolls, slitter and cutting rolls are similarly mounted and driven in the second ap aratus as those explained in the first. lln ig. 6 is shown a portion of the roof using the shingles produced by the first apparatus. lit will be noted that the lower edges or the shin les abut upon the small upper shoulders or the tapered embossments. This type of shingle is easily laid and makes a very attractive root. In ll i 7 is shown a portionof a root" using the s ingles made in the second apparatus. llt will be noted that the embossments are closer together and the shingles are'narrower than those produced in the first type of appartus, but this may be altered by the arrangement of the bosses on the embossing rolls and the cutting of the sheet.

In the first apparatus ex- We claim as our invention:

1. A prepared roofing element of saturated, coated felted fibrous stock provided with tapered embossments thereon.

2. A roofing unit of prepared roofing stock provided with tapered embossments and coated felted fibrous material adapted to be cut into shingles or strip shin les having tapered embosse'ments upon t e outer edges thereof.

5. A prepared roofing sheet'of waterproofed felted fibrous material adapted to be cut into shingles or strip shingles having tapered embossements produced longitudinally of the sheet at predetermined intervals.

6. A process of making waterproof covering units consisting in feeding a roofing length saturated with a waterproofing binder between embossing members, producing embossments on predetermined areas of the roofing length, tapering from a high portion down to the thickness of the material, by raising such areas above the surface of the roofing sheet, by impression of a die member from beneath the sheet cutting said sheet" into convenient units.

7. A prepared roofing element of felted fibrous stock, saturated and coated with a waterproofing substance and provided with tapered embossments thereon.

8. A prepared roofing element of felted fibrous stock, saturated and coated with a waterproofing substance and surfaced with a granular surfacing material, said element provided with tapered embossments thereon.

9. A process of making waterproof shingle units, consisting of treating a sheet of prepared roofing material, saturated coated with a waterproof substance and surfaced with a. granular material between enibossing dies and producing tapered embossments thereon; cutting the sheet into convenient roofing elements.

10. A process of making waterproof shingle units, consisting of treating a sheet prepared roofing material, saturated and coated with a waterproof substance and sur faced with a granular material between embossing dies and producing tapered embossments thereon; cutting the sheet into venient roofing elements and havin highest portions or the tapered emboss arranged on one edge of the units.

Gill

t =1 his 11. A process of making waterproof shingle units, consisting in treating a sheet of prepared roofing material, saturated and coated with a waterproofing substance and surfaced with a granular material, between embossing dies and producing truncated tapered flutings thereon; cutting said sheet into roofing units of a predetermined form.

12. A process of making waterproof shingle units consisting in treating a sheet of 10 prepared roofing material, saturated and coated with a waterproofing substance and surfaced with a granular material, between embossing dies and producing tapered embossments thereon, positioned longitudinally 15 of the sheet.

' CHESTER ll. RAHR.

ROBERT T. POLLOCK. 

